Envelope-machine



(No Model.)

L. P. BOUVIER.

ENVELOPE MACHINE.

No. 453,436. PatentedJune 2,1891.

gglm img UNITED STATES PATE T OFFICE.

LOUIS P. BOUVIER, OF TORONTO, CANADA, ASSIGNOR OF ONE-HALF TO WILLIAM H. BORK, OF BUFFALO, NElV YORK.

ENVELOPE-MACHINE.

SPECIFICATION forming part of Letters Iatent N0. 453,436, dated June 2, 1891.

Application filed January 2, 1891. Serial No. 376,512. (No model.)

binations of parts hereinafter more particularly described, and then definitely claimed.

The drawing represents a perspective view of the carrier of an envelope-machine.

The side bars A and the cross-bar B of the carrier are made and operated in the usual manner.

0 is a centrally-located bar, having an ear 0 at one end, through which is passed the shaft D. From this shaft the center bar O extends to a point below the rear flap of the blank E, the said bar 0 resting in grooves made in the creasing-box G, one of said grooves being hidden on the drawing by the folding-plunger F. A spring H is provided for the purpose of holding the center bar 0 down in position.

It Will be observed that the front flap of the blank E rests upon the cross-bar 13, while the side bars A support the side flaps of the said blank. So far this is the usual plan for supporting the blank E; and my improvement consists in providing the center bar 0, the

- end of which extends below the rear flap of the blank E, as indicated. The carrier, as shown in the drawing, is in the position it should be when just about to carry the blank from the picker to the folding-plunger F. lVhen the carrier moves back and has conveyed the blank E immediately below the plunger F, the end a of the bar 0 is behind and clear of the plunger F, so that the said plunger may descend in the usual manner and carry the blank E with it. 7 hen the plunger F has descended with the blank, the carrier returns to the picker for afresh blank. It follows, therefore, that the bar O when in this latter position would be in the road of the plunger if some provision in the form of the plunger were not made to avoid the said bar. With that View Idivide the plunger in the center, making a doubleheaded plunger, with sufficient space between the two parts to allow them to passthe bar C.

What I claim as my invention is 1. The combination, with the creasing-box and carrier of an envelope-machine, of a central bar located and arranged to support the rear flap of the envelope-blank and moving in a groovein said creasing-box, substantially as and for the purpose specified.

2. The envelope-blank carrier having a center bar 0 and cross-bar D, the center bar 0 being pivotally connected to the cross-bar D and held in a groove made in the creasingbox G by the spring H, in combination with said groovedcreasing-box and spring, and a double-headed folding-plunger F, arranged substantially as and for the purpose specified.

Toronto, December 23, 1890.

LOUIS P. BOUVIER.

In presence of CHARLES C. BALDWIN, JOHN E. CAMERON. 

